Image sensor including light-shielding member for blocking interference between plurality of light-receiving sensors and electronic device including the same

ABSTRACT

An electronic device according to various embodiments includes a display panel and an image sensor disposed below at least a partial area of the display panel. The image sensor includes a lens unit including a first lens for modifying a path of a portion of reflected light and a second lens for modifying a path of another portion of the reflected light, an optical sensor including a first light-receiving sensor and a second light-receiving sensor, and at least one light-shielding member disposed between the first light-receiving sensor and the second light-receiving sensor.

CROSS-REFERENCE TO RELATED APPLICATION

This application is based on and claims priority under 35 U.S.C. § 119to Korean Patent Application No. 10-2017-0087287, filed on Jul. 10,2017, in the Korean Intellectual Property Office, the disclosure ofwhich is incorporated by reference herein its entirety.

BACKGROUND 1. Field

The present disclosure relates to an electronic device including animage sensor for recognizing an external object.

2. Description of Related Art

Mobile electronic devices, such as smartphones, tablet PCs, wearabledevices, and the like, have been widely used. These electronic devicesmay perform various functions, such as a telephone call function, awireless communication function, a video reproduction function, afunction of searching the Web, and the like. In recent years,security-related functions, such as payment for goods, banking, and thelike, which use the electronic devices have been widely used, and theuse of biometrics technology (e.g., fingerprint recognition, irisrecognition, and the like) has been increased correspondingly.

In the related art, a fingerprint sensor included in an electronicdevice is formed in a lower bezel area of the electronic device. In thiscase, it may be difficult to extend a display.

Furthermore, the fingerprint sensor in the related art operates in acapacitive type. In this case, a fingerprint may be resolved due to acapacitance difference between ridges and valleys of the fingerprint. Ingeneral, a gap between ridges and valleys of a person's fingerprint isabout 100 μm, and a separation distance of about 200 μm between afingerprint sensor and a fingerprint has to be ensured to resolve afingerprint of a 250 ppi level in a capacitive type. In a fingerprintrecognition process, signal interference may occur in exponentialproportion to the separation distance. The signal interference may causeblur of a fingerprint image and a decrease in fingerprint recognitionratio.

SUMMARY

In accordance with an aspect of the present disclosure, an electronicdevice includes a display panel including at least one pixel area inwhich a plurality of pixels for radiating light outside the electronicdevice are arranged and at least one light-transmitting area throughwhich at least a portion of light reflected by an object outside passesand an image sensor disposed below at least a partial area of thedisplay panel. The image sensor includes a lens unit comprising a firstlens configured to modify a path of a portion of the reflected light anda second lens configured to modify a path of another portion of thereflected light, an optical sensor including a first light-receivingsensor configured to receive the portion of the reflected light havingpassed through the lens unit and a second light-receiving sensorconfigured to receive the other portion of the reflected light, and atleast one light-shielding member comprising a light-shielding materialdisposed between the first light-receiving sensor and the secondlight-receiving sensor, wherein the light-shielding member is configuredto block interference between the portion of the reflected lightobtained by the first light-receiving sensor and the other portion ofthe reflected light obtained by the second light-receiving sensor.

An electronic device according to various embodiments of the presentdisclosure may implement a thin fingerprint sensor mounted on a rearsurface of a display panel.

An electronic device according to various embodiments of the presentdisclosure may use a portion of a display other than a bezel area as afingerprint recognition area.

An electronic device according to various embodiments of the presentdisclosure may increase fingerprint detection efficiency using a microlens layer and a single light-shielding layer.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the present disclosure will be more apparent from thefollowing detailed description, taken in conjunction with theaccompanying drawings, in which:

FIG. 1 is a diagram illustrating various aspects of an electronic devicefor recognizing an external object using a partial area of a displayaccording to various embodiments;

FIG. 2 is a diagram illustrating an internal configuration and across-section of a fingerprint sensor according to various embodiments;

FIG. 3A is a diagram illustrating a process in which a fingerprintsensor collects reflected light according to various embodiments;

FIG. 3B is a flowchart illustrating a process of recognizing afingerprint according to various embodiments;

FIGS. 4A and 4B diagrams illustrating an arrangement of optical sensorsaccording to various embodiments;

FIG. 5 is a diagram illustrating a configuration of a display panelaccording to various embodiments;

FIG. 6 is a diagram illustrating an arrangement relationship between adisplay panel and a fingerprint sensor and a sensing information graphaccording to various embodiments;

FIGS. 7A and 7B are graphs illustrating refractive-index characteristicsand spectral characteristics according to various embodiments;

FIG. 8 is a diagram illustrating selective transmission of light througha filter according to various embodiments; and

FIG. 9 is a block diagram illustrating an electronic device in a networkenvironment according to various embodiments.

DETAILED DESCRIPTION

Below, various example embodiments of the present disclosure may bedescribed with reference to accompanying drawings. Accordingly, those ofordinary skill in the art will recognize that modifications,equivalents, and/or alternatives of the various example embodimentsdescribed herein can be variously made without departing from the scopeand spirit of the present disclosure. With regard to description ofdrawings, similar components may be marked by similar referencenumerals.

In the disclosure, the expressions “have”, “may have”, “include” and“comprise”, or “may include” and “may comprise” used herein indicateexistence of corresponding features (e.g., numeric values, functions,operations, or components such as parts) but do not exclude presence ofadditional features.

Also, the expressions “A or B”, “at least one of A or/and B”, or “one ormore of A or/and B”, and the like used herein may include any and allcombinations of one or more of the associated listed items. For example,the term “A or B”, “at least one of A and B”, or “at least one of A orB” may refer to all of the case (1) where at least one A is included,the case (2) where at least one B is included, or the case (3) whereboth of at least one A and at least one B are included.

The terms, such as “first”, “second”, and the like used herein may referto various components of various embodiments of the present disclosure,but do not limit the elements. For example, “a first user device” and “asecond user device” indicate different user devices regardless of theorder or priority. For example, without departing the scope of thepresent disclosure, a first complement may be referred to as a secondcomponent, and similarly, a second complement may be referred to as afirst complement.

It will be understood that when a component (e.g., a first component) isreferred to as being “(operatively or communicatively) coupled with/to”or “connected to” another component (e.g., a second component), it canbe directly coupled with/to or connected to the other component or anintervening component (e.g., a third complement) may be present. On theother hand, when a component (e.g., a first component) is referred to asbeing “directly coupled with/to” or “directly connected to” anothercomponent (e.g., a second component), it should be understood that thereis no intervening component (e.g., a third component).

According to the situation, the expression “configured to” used hereinmay be used interchangeably with, for example, the expression “suitablefor”, “having the capacity to”, “designed to”, “adapted to”, “made to”,or “capable of”. The term “configured to” does not mean only“specifically designed to” in hardware. Instead, the expression “adevice configured to” may refer to a situation in which the device is“capable of” operating together with another device or other components.For example, a “processor configured to (or set to) perform A, B, and C”may refer, for example, and without limitation, to a dedicated processor(e.g., an embedded processor) for performing a corresponding operation,a generic-purpose processor (e.g., a central processing unit (CPU) or anapplication processor) which may perform corresponding operations byexecuting one or more software programs which are stored in a memorydevice, or the like.

Terms used in the disclosure are used to describe specific embodimentsof the present disclosure and are not intended to limit the scope of thepresent disclosure. The terms of a singular form may include pluralforms unless otherwise specified. All the terms used herein, whichinclude technical or scientific terms, may have the same meaning that isgenerally understood by a person skilled in the art. It will be furtherunderstood that terms, which are defined in a dictionary and commonlyused, should also be interpreted as is customary in the relevant relatedart and not in an idealized or overly formal detect unless expressly sodefined herein. In some cases, even though terms are terms which aredefined in the disclosure, they may not be interpreted to excludeembodiments of the present disclosure.

An electronic device according to various embodiments of the presentdisclosure may include at least one of a smartphone, a tablet personalcomputer (PC), a mobile phone, a video telephone, an electronic bookreader, a desktop PC, a laptop PC, a netbook computer, a workstation, aserver, personal digital assistant (PDA), a portable multimedia player(PMP), a Motion Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer 3(MP3) player, a mobile medical device, a camera, and/or a wearabledevice, or the like, but is not limited thereto. According to variousembodiments, a wearable device may include at least one of an accessorytype of device (e.g., a timepiece, a ring, a bracelet, an anklet, anecklace, glasses, a contact lens, or a head-mounted device (HMD)), aone-piece fabric or clothes type of device (e.g., electronic clothes), abody-attached type of device (e.g., a skin pad or a tattoo), and/or abio-implantable type of device (e.g., implantable circuit), or the like,but is not limited thereto.

Hereinafter, an electronic device according to various embodiments willbe described with reference to the accompanying drawings. The term“user” used herein may refer to a person who uses an electronic deviceor may refer to a device (e.g., an artificial intelligence electronicdevice) that uses the electronic device.

FIG. 1 is a diagram illustrating various components of an electronicdevice for recognizing an external object by using a partial area of adisplay according to various embodiments. The following description ofFIG. 1, will be made with reference to an example in which the externalobject is a fingerprint. However, the present disclosure is not limitedthereto.

Referring to FIG. 1, an electronic device 101 (e.g., an electronicdevice 901 of FIG. 9) may include a display (or a display module) 110(e.g., a display device 960 of FIG. 9) and a main body (or a housing)120.

The display 110 may include, for example, and without limitation, aliquid crystal display (LCD), a light-emitting diode (LED) display, anorganic LED (OLED) display, a microelectromechanical systems (MEMS)display, and/or an electronic paper display, or the like. The display110 may display, for example, various types of contents (e.g., text,images, videos, icons, symbols, and/or the like) to the user. Thedisplay 110 may include a touch screen and may receive, for example, atouch, gesture, proximity, or hovering input using an electronic pen ora part of the user's body. The display 110 may include a glass coverexposed to the outside and various layers inward of the glass cover.

According to various embodiments, the display 110 may be disposed tooccupy all (bezel-less) or most of a front surface of the electronicdevice 101 (a surface where the contents are output through the display110). For example, the display 110 may extend to side surfaces (e.g.,top/bottom/left/right side surfaces) of the electronic device 101.

According to various embodiments, the display 110 may include afingerprint recognition area 130 therein. The fingerprint recognitionarea 130 may be an area for collecting fingerprint information based onwhich user authentication is performed, using light reflected by afingerprint 150 of the user when the user locates the finger on thefingerprint recognition area 130. For example, the electronic device 101may execute a payment or security related function using the recognizedfingerprint information.

According to various embodiments, the fingerprint recognition area 130may be a location where a thumb is easily situated when the user holdsthe electronic device 101 with a hand in a vertical mode (or a portraitmode).

According to various embodiments, the fingerprint recognition area 130may output contents, such as text, images, or the like, similarly to therest of the display 110 when not performing the fingerprint recognitionfunction. When the fingerprint recognition function is executed, thefingerprint recognition area 130 may be displayed in a different colorthan the rest of the display 110, or only the corresponding portion maybe changed into an emissive state (a state in which light is emittedfrom pixels in the display 110).

According to various embodiments, the fingerprint recognition area 130may include a light-emitting area 135 and a sensing area 136. Accordingto an embodiment, the light-emitting area 135 may be the same as, orlarger than, the sensing area 136. According to another embodiment, thelight-emitting area 135 may be smaller than the sensing area 136.

The light-emitting area 135 may be an area for generating light in aprocess of recognizing a fingerprint. The light-emitting area 135 may bean area for emitting light from the pixels in the display 110 to theoutside. The light emitted from the light-emitting area 135 may bereflected by the fingerprint 150 of the user.

The sensing area 136 may collect the light reflected by the fingerprint150 of the user (hereinafter, referred to as reflected light). Thesensing area 136 may convert the reflected light into an electricalsignal to generate fingerprint information. The fingerprint informationmay be transmitted to a processor or a controller in the electronicdevice 101 and may be used to execute a payment or security relatedfunction.

According to various embodiments, referring to a sectional view takenalong line IT, the display 110 may have a structure in which atransparent layer (or a window panel) 111, an adhesive layer 113, apolarization layer 115, a display panel 117, a protection layer 118, anda heat dissipation layer 119 are sequentially stacked one above another.FIG. 1 is merely illustrative, and the present disclosure is not limitedthereto. The display 110 may not include some of the layers or mayfurther include some layers. For example, the display 110 may furtherinclude a touch panel (not illustrated). In another example, the display110 may further include a lighting layer (not illustrated) disposedabove the display panel 117 to radiate light to the outside. Thelighting layer may output, to the outside, light (e.g., light in a greenwavelength band or a blue wavelength band) that is advantageous forrecognizing the fingerprint 150 of the user.

The transparent layer 111 may be disposed at the top of the display 110.The transparent layer 111 may protect the elements in the display 110.Light emitted from the display panel 117 may be output to the outsidethrough the transparent layer 111. In an embodiment, the transparentlayer 111 may introduce light incident from the outside into the display110.

The adhesive layer 113 may stick the transparent layer 111 to thepolarization layer 115. For example, the adhesive layer 113 may beimplemented with an OCA film (a double-sided adhesive tape).

The polarization layer 115 may polarize light incident from the outsideand may pass light in which an electric field oscillates along aspecified linear path. The polarization layer 115 may block light not inagreement with the specified linear path.

The display panel 117 may be a layer that emits light in response to anelectrical signal. The display panel 117 may have a form in whichlight-emitting elements (e.g., organic electro luminescence (EL)) aredeposited on a thin film transistor (TFT) substrate. The TFT substratemay include TFT devices for driving respective pixels in an active area,metal interconnection wiring, an insulation film, and the like. Theorganic EL may generate light when holes and electrons are injected froma cathode and an anode.

The protection layer 118 may be a film layer for protecting the displaypanel 117. The protection layer 118 may prevent and/or reduce thedisplay panel 117 from colliding with elements inside the electronicdevice 101. The heat dissipation layer 119 may block heat radiating fromthe display panel 117.

According to various embodiments, a fingerprint sensor 140 (or an imagesensor) (e.g., a sensor module 976 of FIG. 9) may be mounted in thefingerprint recognition area 130. A surface (a sensing surface) of thefingerprint sensor 140 that collects light may be disposed to face thedisplay panel 117. The fingerprint sensor 140 may be mounted in aportion of a rear surface of the display 110 where some layers areremoved. For example, the fingerprint sensor 140 may be disposed in anarea where the protection layer 118 and the heat dissipation layer 119below the display panel 117 are removed. The protection layer 118 andthe heat dissipation layer 119 may have a hole or opening formed in anarea thereof that makes contact with the fingerprint sensor 140.

While FIG. 1 illustrates that a portion of the protection layer 118 anda portion of the heat dissipation layer 119 are removed and thefingerprint sensor 140 is mounted in the empty area, the presentdisclosure is not limited thereto. For example, the fingerprint sensor140 may also be mounted in a state in which the protection layer 118 isremoved and the heat dissipation layer 119 is maintained. In anotherexample, some layers below the display panel 117 may have a smallthickness, and the fingerprint sensor 140 may be included in the layers.

According to various embodiments, the fingerprint sensor 140 mayinclude, for example, and without limitation, a micro lens layer, alight-shielding layer, an optical sensor layer, and the like. Thefingerprint sensor 140 may collect recognition information about thefingerprint 150 using light output from the display panel 117 and thenreflected by the fingerprint 150 of the user. Additional disclosureabout a structure of the fingerprint sensor 140 will be provided ingreater detail below with reference to FIG. 2.

The display 110 may be mounted on the main body 120. The main body 120may have various elements (e.g., a processor, a communication circuit, abattery, a PCB, or the like) therein for driving the electronic device101.

FIG. 2 is a diagram illustrating an internal configuration and across-section of a fingerprint sensor according to various embodiments.

Referring to FIG. 2, the fingerprint sensor 140 may include a micro lenslayer 210, a light-shielding layer (or a light-shielding member) 220,and an optical sensor layer (or an optical sensor) 230.

The micro lens layer 210 may have a plurality of lenses 211 arrangedtherein. The micro lens layer 210 may modify a path of reflected lightintroduced through the display panel 117. The plurality of lenses 211may, for example, and without limitation, be circular lenses protrudingtoward the outside. In an embodiment, the plurality of lenses 211 mayeach be formed in a rectangular section. While FIG. 2 illustrates thatthe plurality of lenses 211 are implemented in a fly-eye form, thepresent disclosure is not limited thereto.

According to various embodiments, the micro lens layer 210 may have athickness of a specified value or less. For example, and withoutlimitation, the micro lens layer 210 may have a pitch of 100 μm or lessto resolve a fingerprint of a 250 ppi level.

The light-shielding layer 220 may include a material (e.g., metal) thatblocks light, and may include a plurality of holes 221 according to aspecified pattern. The plurality of holes 221 may serve as a light pathalong which the reflected light is transmitted to the optical sensorlayer 230. A portion of the reflected light refracted through theplurality of lenses 211 in the micro lens layer 210 may be transmittedto the optical sensor layer 230 through the plurality of holes 221, andanother portion of the reflected light may be blocked by the rest of thelight-shielding layer 220 other than the plurality of holes 221. Thereflected light transmitted to the optical sensor layer 230 through theplurality of holes 221 may be effective light necessary for fingerprintrecognition. The blocked reflected light may be noise (e.g., crosstalkor interference) unnecessary for fingerprint recognition. Additionaldisclosure about passing or blocking the reflected light by thelight-shielding layer 220 will be provided in greater detail below withreference to FIG. 3A.

According to various embodiments, the light-shielding layer 220 may beimplemented with a single layer or a plurality of layers. In the casewhere the light-shielding layer 220 is implemented with a single layer,it is unnecessary to form spacing between light-shielding layers and itis possible to prevent and/or reduce an increase in the entire thicknessof the fingerprint sensor 140 due to the thickness of thelight-shielding layer 220.

The optical sensor layer 230 may include a plurality of optical sensors(or light-receiving sensors) 231. The plurality of optical sensors 231may, for example, and without limitation, be disposed in areascorresponding to the plurality of holes 221. The plurality of opticalsensors 231 may convert the reflected light introduced through theplurality of holes 221 into an electrical signal.

According to various embodiments, one or more optical sensors 231 may bedisposed in an area corresponding to each of the holes 221. Additionaldisclosure about an arrangement of the plurality of optical sensors 231will be provided in greater detail below with reference to FIG. 4.

FIG. 3A is a diagram illustrating a process in which a fingerprintsensor collects reflected light according to various embodiments.Although the following description of FIG. 3A will be focused onreflected light collected through a hole 221 a and an optical sensor 231a vertically disposed below a ridge 151, the present disclosure is notlimited thereto.

Referring to FIG. 3A, the user may bring the fingerprint 150 into closecontact with a surface of the display 110. Light output through thedisplay panel 117 in the display 110 may be output to the outside. Theoutput light may be transformed into reflected light 310, 322, and 323by a surface of the fingerprint 150. The reflected light 310, 322, and323 may be reflected by the fingerprint 150 and may be introduced backinto the display 110. The reflected light 310, 322, and 323 may passthrough the transparent layer (or the window panel) 111, the adhesivelayer 113, the polarization layer 115, and the display panel 117 and maybe transmitted to the micro lens layer 210.

The fingerprint 150 may include the ridge 151 and valleys 152 and 153.The ridge 151 may be convex toward the outside, and the valleys 152 and153 may be concave toward the inside. The ridge 151 and the valleys 152and 153 may introduce the reflected light 310, 322, and 323 into thedisplay 110.

The first reflected light 310 may be light reflected by the ridge 151and may be an effective component for fingerprint recognition whenreceived by the optical sensor 231 a vertically disposed below the ridge151.

The first reflected light 310 may be refracted by a first lens unit 211a disposed adjacent to an area corresponding to the hole 221 a (e.g., anarea vertically located above the hole 221 a). The refracted firstreflected light 310 may be transmitted to the optical sensor 231 athrough the hole 221 a.

The second reflected light 322 may be light reflected by the valley 152and may act as an unnecessary noise component (e.g., crosstalk) whenreceived by the optical sensor 231 a. The second reflected light 322 maybe blocked by the light-shielding layer 220 and may not be transmittedto the optical sensor 231 a vertically disposed below the ridge 151. Thesecond reflected light 322 may be processed as effective fingerprintdata when transmitted to an optical sensor 231 b vertically disposedbelow the valley 152.

The third reflected light 323 may be light reflected by the valley 153and may act as an unnecessary noise component (e.g., crosstalk) whenreceived by the optical sensor 231 a. The third reflected light 323 maybe blocked by the light-shielding layer 220 and may not be transmittedto the optical sensor 231 a vertically disposed below the ridge 151. Thethird reflected light 323 may be processed as effective fingerprint datawhen transmitted to an optical sensor 231 c vertically disposed belowthe valley 153. The second reflected light 322 and the third reflectedlight 323 may be refracted by a second lens unit 211 b or 211 c,respectively, relatively far away from the area corresponding to thehole 221 a (e.g., the area vertically located above the hole 221 a). Thesecond reflected light 322 and the third reflected light 323 that havebeen refracted may be blocked by the light-shielding layer 220 aroundthe hole 221 a and may not be transmitted to the optical sensor 231 a.

According to various embodiments, each of the plurality of holes 221 maycollect light refracted by a lens disposed within a specified rangeabove the hole 221. For example, the hole 221 a may collect lightrefracted by nine lenses (including the lens unit 211 a) disposed abovethe hole 221 a. In another example, the hole 221 a may collect lightrefracted by one lens disposed above the hole 221 a (a lens disposed inthe middle of the lens unit 211 a).

FIG. 3B is a flowchart illustrating a process of recognizing afingerprint according to various embodiments.

Referring to FIG. 3B, in operation 351, the controller (or theprocessor) (e.g., a processor 920 of FIG. 9) in the electronic device101 may receive a request for fingerprint scan. The controller may starta fingerprint recognition process, for example, in the case where a userinput for fingerprint scan occurs (e.g., registration of a newfingerprint) or a fingerprint-related app makes a request (e.g., arequest of a payment app).

In operation 353, the controller may activate the fingerprint sensor 140and may operate pixels included in a light-emitting area (e.g., thelight-emitting area 135 of FIG. 1) to generate light. According to anembodiment, the controller may operate only some of the pixels includedin the light-emitting area 135 (refer to FIG. 7).

In operation 355, each optical sensor included in the optical sensorlayer 230 may generate an electrical signal using light reflected by afingerprint. According to an embodiment, the optical sensor may outputan electrical signal using the reflected light introduced through thecorresponding hole included in the light-shielding layer 220.

In operation 357, the controller may register the user's fingerprint ormay verify validity of the recognized fingerprint, based on theelectrical signal converted by each optical sensor. For example, thecontroller may compare the electrical signal generated by each opticalsensor with a reference value set in advance to determine whether afingerprint section located above the optical sensor is a ridge or avalley.

FIGS. 4A and 4B are diagrams illustrating an arrangement of opticalsensors according to various embodiments. FIGS. 4A and 4B are merelyillustrative, and the present disclosure is not limited thereto.

Referring to FIG. 4A, a fingerprint sensor 401 (e.g., the fingerprintsensor 140) may include a micro lens layer (not illustrated), alight-shielding layer 410, and an optical sensor layer 420.

The micro lens layer (e.g., the micro lens layer 210 of FIG. 2) maymodify a path of light reflected by a fingerprint. The light-shieldinglayer 410 (e.g., the light-shielding layer 220 of FIG. 2) may include ahole 411 (e.g., the hole 221 of FIG. 2) that guides a portion of thereflected light necessary for fingerprint recognition toward the opticalsensor layer 420 (e.g., the optical sensor layer 230 of FIG. 2).

The optical sensor layer 420 may include a light-receiving pixel (or alight-receiving sensor) 421 in an area corresponding to the hole 411 ofthe light-shielding layer 410. The light-receiving pixel 421 may, forexample, and without limitation, be disposed such that the center of thelight-receiving pixel 421 is aligned with the center of the hole 411.The light-receiving pixel 421 may change received light into anelectrical signal.

Referring to FIG. 4B, a fingerprint sensor 402 may include a micro lenslayer (not illustrated) (e.g., the micro lens layer 210 of FIG. 2), alight-shielding layer 430 (e.g., the light-shielding layer 220 of FIG.2), and an optical sensor layer 440 (e.g., the optical sensor layer 230of FIG. 2).

Unlike the optical sensor layer 420 of the fingerprint sensor 401, theoptical sensor layer 440 of the fingerprint sensor 402 may, for example,and without limitation, include a plurality of light-receiving pixels441 and 442 in an area corresponding to a hole 431 of thelight-shielding layer 430 (e.g., the hole 221 of FIG. 2). While FIG. 4Billustrates that the two light-receiving pixels 441 and 442 are disposedin the area corresponding to the hole 431, the present disclosure is notlimited thereto.

The plurality of light-receiving pixels 441 and 442 may change receivedlight into an electrical signal. The signals collected through theplurality of light-receiving pixels 441 and 442 may be used forfingerprint recognition according to a specified method. For example,the controller (or the processor) in the electronic device 101 mayrecognize a fingerprint by averaging the signals collected by thelight-receiving pixels. In another example, the controller (or theprocessor) in the electronic device 101 may recognize a fingerprint byincreasing a weighting value for a light-receiving pixel correspondingto the center of the hole 431 and decreasing a weighting value for anearby light-receiving pixel.

FIG. 5 is a diagram illustrating a configuration of a display panelaccording to various embodiments.

Referring to FIG. 5, a display panel 501 may include light-emittingpixels (e.g., RGB pixels) 510 and a metal mesh 520.

The light-emitting pixels (e.g., the RGB pixels) 510 may emit light foroutputting contents. Furthermore, the light emitted from thelight-emitting pixels (e.g., the RGB pixels) 510 may be used forfingerprint recognition. Areas occupied by the light-emitting pixels(e.g., the RGB pixels) 510 may be non-light-transmitting areas thatprevent and/or reduce light reflected by an external object from beingtransmitted to an optical sensor layer.

The metal mesh 520 may fix the light-emitting pixels (e.g., the RGBpixels) 510 and may transfer an electrical signal necessary for anoperation of the light-emitting pixels (e.g., the RGB pixels) 510. Themetal mesh 520 may be a non-light-transmitting area that prevents and/orreduces light reflected by the external object from being transmitted tothe optical sensor layer.

Light-transmitting areas 530 may be included in the metal mesh 520.Light reflected by a fingerprint may pass through the light-transmittingareas 530 in the metal mesh 520 and may be introduced into a fingerprintsensor disposed on a rear surface of the display panel 501. The lighthaving passed through the light-transmitting areas 530 may be used forfingerprint recognition.

A portion of the reflected light introduced from the external object maybe blocked by the display panel 501, and another portion of thereflected light may pass through the display panel 501. In this case,the amount of light transmitted to the optical sensor layer may bedecreased, which may cause a reduction in the amount of light necessaryfor fingerprint recognition. In the case where the fingerprint sensordisposed below the display panel 501 includes a micro lens layer and alight-shielding layer, it is possible to concentrate an amount of lighteffective for fingerprint recognition on a light-receiving sensor and toblock a nearby crosstalk component, thereby increasing efficiency of thefingerprint recognition.

FIG. 6 is a diagram illustrating an arrangement relationship between adisplay panel and a fingerprint sensor and a sensing information graphaccording to various embodiments.

Referring to FIG. 6, a fingerprint sensor 601 may include a micro lenslayer 610 including a plurality of lenses 611 arranged therein, alight-shielding layer 620, and an optical sensor layer 630. The microlens layer 610 may modify a path of reflected light introduced through adisplay panel 605. The light-shielding layer 620 may pass a portion ofthe reflected light and may block another portion of the reflectedlight. The optical sensor layer 630 may generate an electrical signalusing collected light.

The display panel 605 may be disposed above the fingerprint sensor 601.The display panel 605 may include a non-light-transmitting area and alight-transmitting area. For example, the non-light-transmitting areamay include light-emitting pixels and a metal mesh. Thelight-transmitting area may include through-areas in the metal mesh.

According to various embodiments, the micro lens layer 610 and thepixels of the display panel 605 may be arranged according to a specifiedpattern. For example, a specified number or a specified ratio oflight-emitting pixels may be disposed in a rectangular area where eachlens included in the micro lens layer 610 is disposed.

The micro lens layer 610 may increase efficiency in receiving lighthaving passed through the display panel 605, thereby reducing the heightof the light-shielding layer 620. Accordingly, a thin fingerprint sensormay be implemented. In addition, a variation in a graph 608 offingerprint recognition information collected through a light-receivingsensor may be reduced. As a result, a contrast to noise ratio (CNR) of asignal may be increased, and a false rejection ratio of fingerprintrecognition may be decreased.

FIGS. 7A and 7B are graphs illustrating refractive-index characteristicsand spectral characteristics according to various embodiments. FIG. 7Aillustrates a relationship between a refractive index and a wavelength.FIG. 7B illustrates spectral characteristics of R/G/B pixels of an OLEDdisplay.

Referring to FIGS. 7A and 7B, a refractive index may be inverselyproportional to a wavelength of light on the epidermis of a user's skinand a transparent layer.

A controller (or a processor) (not illustrated) that controls afingerprint sensor may calculate (determine) a difference between anamount of light 711 reflected by the epidermis (ridges and valleys) of afingerprint after emitted from a partial area of the display and anamount of light 712 reflected by the transparent layer after emittedfrom a partial area of the display. Based on the difference, thecontroller may resolve a fingerprint image using a contrast difference.

According to various embodiments, the controller (or the processor) (notillustrated) that controls the fingerprint sensor may use light in aspecified wavelength band. For example, in the case of the OLED display,the controller may selectively use blue and green pixels and maintainred pixels in a turned-off state to increase contrast of the ridges andvalleys of the fingerprint.

FIG. 8 is a diagram illustrating selective transmission of light througha filter according to various embodiments.

Referring to FIG. 8, a fingerprint sensor 801 (e.g., the fingerprintsensor 140) may include a micro lens layer 810 (e.g., the micro lenslayer 210 of FIG. 2), a light-shielding layer 820 (e.g., thelight-shielding layer 220 of FIG. 2), an optical sensor layer 830 (e.g.,the optical sensor layer 230 of FIG. 2), and an optical filter 840.

The optical filter 840 may be disposed on an upper surface of the microlens layer 810. The optical filter 840 may, for example, have a form(e.g., a fly-eye form) that corresponds to the upper surface of themicro lens layer 810. The optical filter 840 may, for example, andwithout limitation, be implemented in a multi-coating form on the uppersurface of the micro lens layer 810.

The filter 840 may pass a portion of light and block another portion ofthe light depending on a wavelength. Accordingly, it is possible to passlight with a wavelength facilitating fingerprint recognition and toprevent and/or reduce light with other wavelengths from reaching theoptical sensor layer 830. For example, the filter 840 may pass reflectedlight in green and blue wavelength bands and may block reflected lightin a red wavelength band. Accordingly, the contrast of ridges andvalleys of a fingerprint may be increased.

A fingerprint sensor 805 may include a micro lens layer 850 (e.g., themicro lens layer 210 of FIG. 2), a light-shielding layer 860 (e.g., thelight-shielding layer 220 of FIG. 2), and an optical sensor layer 870(e.g., the optical sensor layer 230 of FIG. 2). An optical filter layer880 may be disposed above the fingerprint sensor 805 (between a displaypanel (not illustrated) and the fingerprint sensor 805). The opticalfilter layer 880 may pass a portion of light and block another portionof the light depending on a wavelength. The optical filter layer 880 maypass reflected light in green and blue wavelength bands and may blockreflected light in a red wavelength band. Accordingly, the contrast ofridges and valleys of a fingerprint may be increased.

FIG. 9 illustrates a block diagram of an electronic device 901 in anetwork environment 900, according to various embodiments. An electronicdevice according to various embodiments of this disclosure may includevarious forms of devices. For example, the electronic device may includeat least one of, for example, portable communication devices (e.g.,smartphones), computer devices (e.g., personal digital assistants(PDAs), tablet personal computers (PCs), laptop PCs, desktop PCs,workstations, or servers), portable multimedia devices (e.g., electronicbook readers or Motion Picture Experts Group (MPEG-1 or MPEG-2) AudioLayer 3 (MP3) players), portable medical devices (e.g., heartbeatmeasuring devices, blood glucose monitoring devices, blood pressuremeasuring devices, and body temperature measuring devices), cameras,and/or wearable devices, or the like, but are not limited thereto. Thewearable device may include at least one of an accessory type (e.g.,watches, rings, bracelets, anklets, necklaces, glasses, contact lens, orhead-mounted-devices (HMDs)), a fabric or garment-integrated type (e.g.,an electronic apparel), a body-attached type (e.g., a skin pad ortattoos), and/or a bio-implantable type (e.g., an implantable circuit),or the like, but is not limited thereto. According to variousembodiments, the electronic device may include at least one of, forexample, televisions (TVs), digital versatile disk (DVD) players,audios, audio accessory devices (e.g., speakers, headphones, orheadsets), refrigerators, air conditioners, cleaners, ovens, microwaveovens, washing machines, air cleaners, set-top boxes, home automationcontrol panels, security control panels, game consoles, electronicdictionaries, electronic keys, camcorders, and/or electronic pictureframes, or the like, but are not limited thereto.

In another embodiment, the electronic device may include at least one ofnavigation devices, satellite navigation system (e.g., Global NavigationSatellite System (GNSS)), event data recorders (EDRs) (e.g., black boxfor a car, a ship, or a plane), vehicle infotainment devices (e.g.,head-up display for vehicle), industrial or home robots, drones,automatic teller's machines (ATMs), points of sales (POSs), measuringinstruments (e.g., water meters, electricity meters, or gas meters),and/or internet of things (e.g., light bulbs, sprinkler devices, firealarms, thermostats, or street lamps), or the like, but are not limitedthereto. The electronic device according to an embodiment of thisdisclosure may not be limited to the above-described devices, and mayprovide functions of a plurality of devices like smartphones which hasmeasurement function of personal biometric information (e.g., heart rateor blood glucose). In this disclosure, the term “user” may refer to aperson who uses an electronic device or may refer to a device (e.g., anartificial intelligence electronic device) that uses the electronicdevice.

Referring to FIG. 9, under the network environment 900, the electronicdevice 901 (e.g., the electronic device 101) may communicate with anelectronic device 902 through local wireless communication 998 or maycommunication with an electronic device 904 or a server 908 through anetwork 999. According to an embodiment, the electronic device 901 maycommunicate with the electronic device 904 through the server 908.

According to an embodiment, the electronic device 901 may include aprocessor (e.g., including processing circuitry) 920, a memory 930, aninput device 950 (e.g., including input circuitry, such as, for example,and without limitation, a micro-phone or a mouse), a sound output device(e.g., including sound output circuitry) 955, a display device 960, anaudio module (e.g., including audio circuitry) 970, a sensor module 976,an interface (e.g., including interface circuitry) 977, a haptic module(e.g., including haptic circuitry) 979, a camera module 980, a powermanagement module 988, a battery 989, a communication module (e.g.,including communication circuitry) 990, a subscriber identificationmodule 996, an antenna module 997, and a connecting terminal 978.According to an embodiment, the electronic device 901 may not include atleast one (e.g., the display device 960 or the camera module 980) of theabove-described elements or may further include other element(s).

A bus (not shown) may interconnect the above-described elements 920 to990 and may include a circuit for conveying signals (e.g., a controlmessage or data) between the above-described elements. The processor 920may include various processing circuitry, such as, for example, andwithout limitation, one or more of a dedicated processor, a centralprocessing unit (CPU), an application processor (AP), a graphicprocessing unit (GPU), an image signal processor (ISP) of a camera or acommunication processor (CP). According to an embodiment, the processor920 may be implemented with a system on chip (SoC) or a system inpackage (SiP). For example, the processor 920 may drive an operatingsystem (OS) or an application to control at least one of another element(e.g., hardware or software element) connected to the processor 920 andmay process and compute various data. The processor 920 may load acommand or data, which is received from at least one of other elements(e.g., the communication module 990), into a volatile memory 932 toprocess the command or data and may store the result data into anonvolatile memory 934. According to an embodiment, the processor 920may include a main processor 921 and an auxiliary processor 923.

The memory 930 may include, for example, the volatile memory 932 and/orthe nonvolatile memory 934. The volatile memory 932 may include, forexample, a random access memory (RAM) (e.g., a dynamic RAM (DRAM), astatic RAM (SRAM), or a synchronous DRAM (SDRAM)). The nonvolatilememory 934 may include, for example, an one time programmable read-onlymemory (OTPROM), a programmable read-only memory (PROM), an erasablePROM (EPROM), an electrically EPROM (EEPROM), a mask ROM, a flash ROM, aflash memory, a hard disk drive (HDD), or a solid-state drive (SSD). Inaddition, the nonvolatile memory 934 may be configured in the form of aninternal memory 936 or the form of an external memory 938 which isavailable through connection only if necessary, according to theconnection with the electronic device 901. The external memory 938 mayfurther include a flash drive such as compact flash (CF), secure digital(SD), micro secure digital (Micro-SD), mini secure digital (Mini-SD),extreme digital (xD), a multimedia card (MMC), or a memory stick. Theexternal memory 938 may be operatively or physically connected with theelectronic device 901 in a wired manner (e.g., a cable or a universalserial bus (USB)) or a wireless (e.g., Bluetooth) manner.

For example, the memory 930 may store, for example, at least onedifferent software element, such as a command or data associated withthe program 940, of the electronic device 901. The program 940 mayinclude, for example, and without limitation, an operating system 942, amiddleware 944, an application 946 and/or an application program(interchangeably, “application”) 947, or the like.

The input device 950 may include various input circuitry, such as, forexample, and without limitation, a microphone, a mouse, and/or akeyboard, or the like. According to an embodiment, the keyboard mayinclude a keyboard physically connected or a virtual keyboard displayedthrough the display 960.

The display 960 may include a display, a hologram device or a projector,and a control circuit to control a relevant device. The display mayinclude various types of display, such as, for example, and withoutlimitation, a liquid crystal display (LCD), a light emitting diode (LED)display, an organic LED (OLED) display, a microelectromechanical systems(MEMS) display, and/or an electronic paper display, or the like.According to an embodiment, the display may be flexibly, transparently,or wearably implemented. The display may include a touch circuitry,which is able to detect a user's input such as a gesture input, aproximity input, or a hovering input or a pressure sensor(interchangeably, a force sensor) which is able to measure the intensityof the pressure by the touch. The touch circuit or the pressure sensormay be implemented integrally with the display or may be implementedwith at least one sensor separately from the display. The hologramdevice may show a stereoscopic image in a space using interference oflight. The projector may project light onto a screen to display animage. The screen may be located inside or outside the electronic device901.

The audio module 970 may include various audio circuitry and convert,for example, from a sound into an electrical signal or from anelectrical signal into the sound. According to an embodiment, the audiomodule 970 may acquire sound through the input device 950 (e.g., amicrophone) or may output sound through an output device (notillustrated) (e.g., a speaker or a receiver) included in the electronicdevice 901, an external electronic device (e.g., the electronic device902 (e.g., a wireless speaker or a wireless headphone)) or an electronicdevice 906 (e.g., a wired speaker or a wired headphone) connected withthe electronic device 901

The sensor module 976 may measure or detect, for example, an internaloperating state (e.g., power or temperature) of the electronic device901 or an external environment state (e.g., an altitude, a humidity, orbrightness) to generate an electrical signal or a data valuecorresponding to the information of the measured state or the detectedstate. The sensor module 976 may include, for example, and withoutlimitation, at least one of a gesture sensor, a gyro sensor, abarometric pressure sensor, a magnetic sensor, an acceleration sensor, agrip sensor, a proximity sensor, a color sensor (e.g., a red, green,blue (RGB) sensor), an infrared sensor, a biometric sensor (e.g., aniris sensor, a fingerprint sensor, a heartbeat rate monitoring (HRM)sensor, an e-nose sensor, an electromyography (EMG) sensor, anelectroencephalogram (EEG) sensor, an electrocardiogram (ECG) sensor), atemperature sensor, a humidity sensor, an illuminance sensor, and/or anUV sensor, or the like. The sensor module 976 may further include acontrol circuit for controlling at least one or more sensors includedtherein. According to an embodiment, the sensor module 976 may becontrolled by using the processor 920 or a processor (e.g., a sensorhub) separate from the processor 920. In the case that the separateprocessor (e.g., a sensor hub) is used, while the processor 920 is in asleep state, the separate processor may operate without awakening theprocessor 920 to control at least a portion of the operation or thestate of the sensor module 976.

According to an embodiment, the interface 977 may include variousinterface circuitry, such as, for example, and without limitation, ahigh definition multimedia interface (HDMI), a universal serial bus(USB), an optical interface, a recommended standard 232 (RS-232), aD-subminiature (D-sub), a mobile high-definition link (MHL) interface, aSD card/MMC(multi-media card) interface, and/or an audio interface, orthe like. A connecting terminal 978 may physically connect theelectronic device 901 and the electronic device 906. According to anembodiment, the connecting terminal 978 may include, for example, an USBconnector, an SD card/MMC connector, or an audio connector (e.g., aheadphone connector).

The haptic module 979 may include various haptic circuitry and convertan electrical signal into mechanical stimulation (e.g., vibration ormotion) or into electrical stimulation. For example, the haptic module979 may apply tactile or kinesthetic stimulation to a user. The hapticmodule 979 may include various haptic circuitry, such as, for example,and without limitation, a motor, a piezoelectric element, and/or anelectric stimulator, or the like.

The camera module 980 may capture, for example, a still image and amoving picture. According to an embodiment, the camera module 980 mayinclude at least one lens (e.g., a wide-angle lens and a telephoto lens,or a front lens and a rear lens), an image sensor, an image signalprocessor, or a flash (e.g., a light emitting diode or a xenon lamp).

The power management module 988, which is to manage the power of theelectronic device 901, may constitute at least a portion of a powermanagement integrated circuit (PMIC).

The battery 989 may include a primary cell, a secondary cell, or a fuelcell and may be recharged by an external power source to supply power atleast one element of the electronic device 901.

The communication module 990 may include various communication circuitryand establish a communication channel between the electronic device 901and an external device (e.g., the first external electronic device 902,the second external electronic device 904, or the server 908). Thecommunication module 990 may support wired communication or wirelesscommunication through the established communication channel. Accordingto an embodiment, the communication module 990 may include a wirelesscommunication module 992 or a wired communication module 994. Thecommunication module 990 may communicate with the external device (e.g.,the first external electronic device 902, the second external electronicdevice 904, or the server 908) through a first network 998 (e.g. awireless local area network such as Bluetooth or infrared dataassociation (IrDA)) or a second network 999 (e.g., a wireless wide areanetwork such as a cellular network) through a relevant module among thewireless communication module 992 or the wired communication module 994.

The wireless communication module 992 may support, for example, cellularcommunication, local wireless communication, global navigation satellitesystem (GNSS) communication. The cellular communication may include, forexample, long-term evolution (LTE), LTE Advance (LTE-A), code divisionmultiple access (CMA), wideband CDMA (WCDMA), universal mobiletelecommunications system (UMTS), wireless broadband (WiBro), or globalsystem for mobile communications (GSM). The local wireless communicationmay include wireless fidelity (Wi-Fi), WiFi Direct, light fidelity(Li-Fi), Bluetooth, Bluetooth low energy (BLE), Zigbee, near fieldcommunication (NFC), magnetic secure transmission (MST), radio frequency(RF), or a body area network (BAN). The GNSS may include at least one ofa global positioning system (GPS), a global navigation satellite system(Glonass), Beidou Navigation Satellite System (Beidou), the Europeanglobal satellite-based navigation system (Galileo), or the like. In thepresent disclosure, “GPS” and “GNSS” may be interchangeably used.

According to an embodiment, when the wireless communication module 992supports cellar communication, the wireless communication module 992may, for example, identify or authenticate the electronic device 901within a communication network using the subscriber identificationmodule (e.g., a SIM card) 996. According to an embodiment, the wirelesscommunication module 992 may include a communication processor (CP)separate from the processor 920 (e.g., an application processor (AP)).In this case, the communication processor may perform at least a portionof functions associated with at least one of elements 910 to 996 of theelectronic device 901 or substitute for the processor 920 when theprocessor 920 is in an inactive (sleep) state, and together with theprocessor 920 when the processor 920 is in an active state. According toan embodiment, the wireless communication module 992 may include aplurality of communication modules, each supporting only a relevantcommunication scheme among cellular communication, local wirelesscommunication, or a GNSS communication.

The wired communication module 994 may include, for example, include alocal area network (LAN) service, a power line communication, or a plainold telephone service (POTS).

For example, the first network 998 may employ, for example, WiFi director Bluetooth for transmitting or receiving commands or data throughwireless direct connection between the electronic device 901 and thefirst external electronic device 902. The second network 999 may includea telecommunication network (e.g., a computer network such as a LAN or aWAN, the Internet or a telephone network) for transmitting or receivingcommands or data between the electronic device 901 and the secondelectronic device 904.

According to various embodiments, the commands or the data may betransmitted or received between the electronic device 901 and the secondexternal electronic device 904 through the server 908 connected with thesecond network 999. Each of the first and second external electronicdevices 902 and 904 may be a device of which the type is different fromor the same as that of the electronic device 901. According to variousembodiments, all or a part of operations that the electronic device 901will perform may be executed by another or a plurality of electronicdevices (e.g., the electronic devices 902 and 904 or the server 908).According to an embodiment, in the case that the electronic device 901executes any function or service automatically or in response to arequest, the electronic device 901 may not perform the function or theservice internally, but may alternatively or additionally transmitrequests for at least a part of a function associated with theelectronic device 901 to any other device (e.g., the electronic device902 or 904 or the server 908). The other electronic device (e.g., theelectronic device 902 or 904 or the server 908) may execute therequested function or additional function and may transmit the executionresult to the electronic device 901. The electronic device 901 mayprovide the requested function or service using the received result ormay additionally process the received result to provide the requestedfunction or service. To this end, for example, cloud computing,distributed computing, or client-server computing may be used.

According to various embodiments, an electronic device includes adisplay panel including at least one pixel area in which a plurality ofpixels configured to radiate light outside the electronic device arearranged and at least one light-transmitting area through which at leasta portion of light reflected by an object outside passes, and an imagesensor disposed below at least a partial area of the display panel,wherein the image sensor includes a lens unit including a first lensconfigured to modify a path of a portion of the reflected light and asecond lens configured to modify a path of another portion of thereflected light, an optical sensor including a first light-receivingsensor configured to obtain the portion of the reflected light havingpassed through the lens unit and a second light-receiving sensorconfigured to obtain the other portion of the reflected light, and atleast one light-shielding member between the first light-receivingsensor and the second light-receiving sensor, the light-shielding memberbeing configured to block interference between the portion of thereflected light obtained using the first light-receiving sensor and theother portion of the reflected light obtained using the secondlight-receiving sensor.

According to various embodiments, the first lens and/or the second lensincludes a lens surface on which the reflected light is incident and aplurality of side surfaces for the lens surface, and at least some ofthe plurality of side surfaces surround at least four vertices where theat least some of the plurality of side surfaces meet.

According to various embodiments, a portion of the light-shieldingmember is disposed in at least a partial area where the portion of thereflected light and the other portion of the reflected light cross eachother.

According to various embodiments, a hole is formed in the portion of thelight-shielding member, and one of the first and second light-receivingsensors has a larger diameter than the hole.

According to various embodiments, the light-shielding member includesone or more holes, and at least one of the holes is disposed tocorrespond to two or more of a plurality of light-receiving sensorsincluded in the optical sensor.

According to various embodiments, the electronic device further includesa filter layer configured to block at least some wavelengths of thelight or the reflected light. The filter layer is disposed between thedisplay panel and the lens unit. The filter layer is formed on a lenssurface of the lens unit.

According to various embodiments, the lens unit has a pitch of 100 μm orless.

According to various embodiments, the display panel causes some of theplurality of pixels to output light and restricts other pixels fromoutputting light when the electronic device operates to recognize theobject.

According to various embodiments, the display panel causes the pixelsoutputting the light, from among the plurality of pixels, to outputlight in at least one of a green wavelength band and a blue wavelengthband when the electronic device operates to recognize the object. Thedisplay panel causes the pixels outputting the light, among theplurality of pixels, to output light in a blue wavelength band.

According to various embodiments, the electronic device further includesa lighting layer disposed above the display panel and configured toradiate light outside the electronic device. The image sensor collectsrecognition information about the object using light reflected by theobject after radiated from the lighting layer.

According to various embodiments, an electronic device includes adisplay panel configured to output light to the outside, a sensor moduledisposed below the display panel and configured to generate anelectrical signal using light reflected by an external object based onlight output from a plurality of pixels included in the display panel,and a processor configured to recognize the external object, based onthe electrical signal, wherein the sensor module includes a micro lenslayer including a plurality of lenses and is configured to modify a pathof the reflected light, a light-shielding layer configured to pass aportion of the reflected light and to block another portion of thereflected light, and an optical sensor layer configured to convert thereflected light having passed through the light-shielding layer into theelectrical signal.

According to various embodiments, the electronic device further includesa protection layer and/or a heat dissipation layer disposed on a rearsurface of the display panel, wherein the protection layer and/or theheat dissipation layer includes an opening and/or a hole in at least aportion of the protection layer and/or the heat dissipation layer, andwherein the sensor module is disposed in the opening and/or the hole.

According to various embodiments, the light-shielding layer includes aplurality of holes configured to guide the reflected light toward alight-receiving sensor in the optical sensor layer, and each of theplurality of holes collects light refracted by a lens disposed within aspecified range above the hole, from among the plurality of lenses.

According to various embodiments, the micro lens layer has a largerthickness than the light-shielding layer.

According to various embodiments, the processor is configured to outputlight in at least one of a green wavelength band and a blue wavelengthband through some of the plurality of pixels.

According to various embodiments, the processor is configured to outputlight through some of the plurality of pixels included in an area thatis larger than an area corresponding to the sensor module.

According to various embodiments, the processor is configured to outputlight through the plurality of pixels when an application executed inthe electronic device makes a request to recognize the external objector when a user input for recognizing the external object occurs.

According to various embodiments, each of the plurality of holescollects light refracted by first to ninth lenses disposed above thehole.

While the present disclosure has been illustrated and described withreference to various example embodiments thereof, it will be understoodby those skilled in the art that various changes in form and details maybe made therein without departing from the spirit and scope of thepresent disclosure as defined by the appended claims and theirequivalents.

What is claimed is:
 1. An electronic device comprising: a display panelincluding at least one pixel area in which a plurality of pixelsconfigured to radiate light outside the electronic device are arranged,and at least one light-transmitting area through which at least aportion of light reflected by an object outside the electronic devicepasses; and an image sensor disposed below at least a partial area ofthe display panel, wherein the image sensor includes: a lens unitcomprising a first lens configured to modify a path of a portion of thereflected light and a second lens configured to modify a path of anotherportion of the reflected light; an optical sensor comprising a firstlight-receiving sensor configured to receive the portion of thereflected light and a second light-receiving sensor configured toreceive the other portion of the reflected light; and at least onelight-shielding member comprising a light shield disposed between thefirst light-receiving sensor and the second light-receiving sensor, thelight-shielding member being configured to block interference betweenthe portion of the reflected light received using the firstlight-receiving sensor and the other portion of the reflected lightreceived using the second light-receiving sensor.
 2. The electronicdevice of claim 1, wherein the first lens and/or the second lensincludes a lens surface on which the reflected light is incident and aplurality of side surfaces, and wherein at least some of the pluralityof side surfaces surround at least four vertices where the at least someof the plurality of side surfaces meet.
 3. The electronic device ofclaim 1, wherein a portion of the light-shielding member is disposed inat least a partial area where the portion of the reflected light and theother portion of the reflected light cross each other.
 4. The electronicdevice of claim 3, wherein a hole is formed in the portion of thelight-shielding member, and wherein at least one of the first and secondlight-receiving sensors has a diameter greater than a diameter of thehole.
 5. The electronic device of claim 1, wherein the light-shieldingmember includes one or more holes, and wherein at least one of the holesis disposed to correspond to two or more of a plurality oflight-receiving sensors included in the optical sensor.
 6. Theelectronic device of claim 1, further comprising: a filter layerconfigured to block at least some wavelengths of the light and/or thereflected light.
 7. The electronic device of claim 6, wherein the filterlayer is disposed between the display panel and the lens unit.
 8. Theelectronic device of claim 6, wherein the filter layer is disposed on alens surface of the lens unit.
 9. The electronic device of claim 1,wherein the lens unit has a pitch of 100 μm or less.
 10. The electronicdevice of claim 1, wherein the display panel is configured to cause someof the plurality of pixels to output light and to restrict other pixelsfrom outputting light when the electronic device operates to recognizethe object.
 11. The electronic device of claim 10, wherein the displaypanel is configured to cause the pixels outputting the light, from amongthe plurality of pixels, to output light in at least one of a greenwavelength band and a blue wavelength band when the electronic deviceoperates to recognize the object.
 12. The electronic device of claim 10,wherein the display panel is configured to cause the pixels outputtingthe light, from among the plurality of pixels, to output light in a bluewavelength band.
 13. The electronic device of claim 1, furthercomprising: a lighting layer disposed above the display panel andconfigured to radiate light outside the electronic device.
 14. Theelectronic device of claim 13, wherein the image sensor is configured tocollect recognition information about the object using light reflectedby the object after being radiated with light from the lighting layer.15. An electronic device comprising: a display panel configured tooutput light to the outside; a sensor module disposed below the displaypanel and configured to generate an electrical signal using lightreflected by an external object based on light output from a pluralityof pixels included in the display panel; and a processor configured torecognize the external object based on the electrical signal, whereinthe sensor module comprises: a micro lens layer including a plurality oflenses and configured to modify a path of the reflected light; alight-shielding layer configured to pass a portion of the reflectedlight and to block another portion of the reflected light; and anoptical sensor layer configured to convert the portion of the reflectedlight having passed through the light-shielding layer into theelectrical signal.
 16. The electronic device of claim 15, furthercomprising: a protection layer and/or a heat dissipation layer disposedon a rear surface of the display panel, wherein the protection layerand/or the heat dissipation layer includes an opening and/or a hole inat least a portion of the protection layer and/or the heat dissipationlayer, and wherein the sensor module is disposed in the opening and/orthe hole.
 17. The electronic device of claim 15, wherein thelight-shielding layer includes a plurality of holes configured to guidethe reflected light toward a light-receiving sensor in the opticalsensor layer, and wherein each of the plurality of holes is configuredto receive light refracted by a lens disposed within a specified rangeabove the hole from among the plurality of lenses.
 18. The electronicdevice of claim 15, wherein the micro lens layer has a thickness largerthan a thickness of the light-shielding layer.
 19. The electronic deviceof claim 15, wherein the processor is configured to output light in atleast one of a green wavelength band and a blue wavelength band throughsome of the plurality of pixels.
 20. The electronic device of claim 15,wherein the processor is configured to output light through some of theplurality of pixels included in an area that is larger than an areacorresponding to the sensor module.